都错了?做仰卧起坐可能会对身体产生伤害
<p><span word="Many">Many</span> <span word="sportspeople">sportspeople</span> <span word="do">do</span> <span word="sit">sit</span>-<span word="ups">ups</span> <span word="as">as</span> <span word="part">part</span> <span word="of">of</span> <span word="a">a</span> <span word="raft">raft</span> <span word="of">of</span> <span word="exercises">exercises</span> <span word="which">which</span> <span word="aim">aim</span> <span word="to">to</span> <span word="improve">improve</span> <span word="their">their</span> <span word="core">core</span> <span word="stability">stability</span>, <span word="but">but</span> <span word="research">research</span> <span word="from">from</span> <span word="Thomas">Thomas</span> <span word="Nesser">Nesser</span> <span word="from">from</span> <span word="Indiana">Indiana</span> <span word="State">State</span> <span word="University">University</span> <span word="suggests">suggests</span> <span word="that">that</span> <span word="improving">improving</span> <span word="your">your</span> <span word="core">core</span> <span word="stability">stability</span> <span word="doesn">doesn</span>'<span word="t">t</span> <span word="necessarily">necessarily</span> <span word="result">result</span> <span word="in">in</span> <span word="better">better</span> <span word="athletic">athletic</span> <span word="performance">performance</span>.</p><p>很多运动人士将仰卧起坐作为锻炼的一种方式，来提高自己身体核心区的稳定性。但是印第安纳州立大学的托马斯·内赛尔的研究表明，核心区稳定性的提高不一定会让你在运动上有很好的表现。</p><p><span word="Whether">Whether</span> <span word="or">or</span> <span word="not">not</span> <span word="they">they</span> <span word="provide">provide</span> <span word="you">you</span> <span word="with">with</span> <span word="precisely">precisely</span> <span word="the">the</span> <span word="physique">physique</span> <span word="or">or</span> <span word="fitness">fitness</span> <span word="you">you</span> <span word="desire">desire</span>, <span word="could">could</span> <span word="sit">sit</span>-<span word="ups">ups</span> <span word="bring">bring</span> <span word="unintended">unintended</span> <span word="consequences">consequences</span> <span word="such">such</span> <span word="as">as</span> <span word="back">back</span> <span word="pain">pain</span>? <span word="Stuart">Stuart</span> <span word="McGill">McGill</span>, <span word="professor">professor</span> <span word="of">of</span> <span word="spine">spine</span> <span word="biomechanics">biomechanics</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Waterloo">Waterloo</span> <span word="in">in</span> <span word="Canada">Canada</span> <span word="has">has</span> <span word="been">been</span> <span word="studying">studying</span> <span word="sit">sit</span>-<span word="ups">ups</span> <span word="for">for</span> <span word="years">years</span> <span word="and">and</span> <span word="is">is</span> <span word="convinced">convinced</span> <span word="that">that</span> <span word="the">the</span> <span word="traditional">traditional</span> <span word="crunch">crunch</span> <span word="does">does</span> <span word="indeed">indeed</span> <span word="cause">cause</span> <span word="us">us</span> <span word="harm">harm</span>.</p><p>不管仰卧起坐是否真的能助你实现你想要的体格或健身效果，它们有可能会带来如背部疼痛这样意想不到的后果吗？加拿大滑铁卢大学的生物力学脊柱教授斯图尔特·麦吉尔对仰卧起坐已经研究多年，深信这一传统的收腹运动确实会有损我们的身体。</p>
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